Carbureter for gas-engines.



No. 804,025. PATENTED NOV. 7, 1905. 0. MINTON.

GARBURETER FOR GAS' ENGINES.

APPLICATION FILED JUNE 29, 1904.

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O. MINTON. GARBURETER FOR GAS ENGINES.

APPLICATION FILED .TUNE Z9, 1904.

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WITNESS/5S.'

CARBURETER FOR GAS ENGINES.

APPLICATION FILED JUNE 29. 1904.-

3 SHEETS-SHEET 3.

UNITED STATES PATENT GFFICE.

OGDEN MINTON, OF NEW YORK, N. Y.

CARBURETER FOR GAS-ENGINES.

To all wh/0m t may concern:

Beitknown that I, OGDEN MINToN. acitizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of ,Kings and State of New York, have invented a new and Improved Carbureter for Gas-Engines, of which the following is a full, clear, and exact description.

My invention relates to a device for mixing air and a combustible fuel forgas-engines, although it may be used for other purposes; and the principal object of the invention is to provide for regulating the mixture of air and fuel to be admitted, and also the quantity.

Further objects will appear in the course of the subjoined description, and the scope of the invention will be defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this speciiication, in which similar characters of referenceindicate corresponding parts in all the figures.

Figure 1 is a longitudinal sectional view of a preferred form of my invention. Fig. 2 is a longitudinal elevation thereof. Fig. 3 is an end elevation showing portions in section. Fig. 4 is a sectional view on the line 4 l of Fig. 8; and Fig. 5 is a side elevation of a gasengine, showing a manner in which my invention may be applied thereto.

The carbureter, as shown in the drawings, comprises four shells a, d, a2, and a3. Each of these shells is preferably made in a separate casting, and the two middle ones d and t2 are preferably of the same formand have an expanded portion near the surfaces, where they come in contact with each other. Each one of the shells is provided with a projecting casing a", a, c, and a7. These casings are designed to contain the valves As shown, there are two of these valves, each comprising a pair of plates and each plate being' provided with an opening which when the plates are in extended position register with each other and form the maximum opening for the passage of air. When it is desired to decrease the size of the opening, the plates are moved inwardly, so as to cover a portion of each of the openings b.

Each of the plates is provided with a projection 52, which extends from the casing in which the plate is contained and is connected with a link c. These links are pivotally connected with bell-cranks CZ, which have oppositely-extending projections d and are piv- Specification of Letters Patent.

Application tiled June 29,1904. Serial No. 214,616.

' other.

Patented Nov. 7, 1905.

oted to the device at the points cl2. The main portions of the connections Z are pivotally connected together near their outer ends by means of a link @and pins and e2. In order to provide for adjustment to secure the proper relation between the openings in the two valves, one of the connections CZ is provided with a series of perforations cl3, by which the end of the link e may be connected at different points e3. It will be obvious that upon the oscillation of either of the bell-cranks Z both of them will be operated and both of the valves will be simultaneously opened or closed.

In order to provide for automatically operating the valves from the engine itself and securing their proper movements, a link f' (shown in dotted lines in Fig. Q) may be connected to one of the bell-cranks from a moving part of the engine.

For the introduction of the vaporizing liquid an inlet g, Fig. 3, is provided, having a chamber l for the reception of the liquid fuel. la is a valve for controlling the opening in said chamber, and it is provided with a valve-stem 7e and a iioat Z, these parts being contained in a Heat-chamber m. The outlet m of the receptacle extends to a casing n, the outlet of which is provided with a regulating-valve 0 and a valve-stem 0', designed to be adjusted by means of a handle V79 and held in adjustable position by an arm p'.

Q is a baffle-plate suspended over the outlet of the casing n and supported by a foraminous partition o, which may be made of one or more sheets of wire-cloth.

In carbureters as heretofore constructed the slowing down of the engine causes less air to be drawn in and with less speed. This causes a bad or incorrect mixture of thel fuel and air to be introduced into the engine. An important object of my invention is to avoid this objection.

The carbureter should be set with both valves open. Upon the engine being started the valve 0 can be regulated, by means of the handle j), until the engine can be made to go no faster. It will be obvious by manipulating this handle that the valve can be set so as to produce the proper mixture of air and gas when both valves are open. The upper valve is then almost closed by placing the plates so that the openings b' practically overlap each The pin e2 is then removed from the holes Z3 and e3, and the lower valve Z) is adjusted until the best results are obtained-that is,

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until the engine operates at the greatest speed. The pin should then be so placed in the holes Z3 e3 that the valves are closed, as described, and the adjustment is made permanent. It will thus be seen that the device is so set that when the upper valve is entirely closed the lower valve will be so set as toproduce the best results, and the same is true when the Lipper valve is entirely-open, the valve 0 being also so set as to produce the proper mixture in both positions of the valves Upon the introduction of suilicient liquid fuel through the inlet f/ it will fiow through the tube m into the casing fa, and when the engine runs it takes air upthrough the carbureter at a high rate of speed through the valveopenings The air will rush past the valve 0 and will cause the liquid fuel to be atomized. The vapor will be taken up with the air and introduced into the engine, coming into contact with the baffle-plate Q and passing through the partition e, so that it will be thoroughly mixed.

The adjustment of the valves cause the atomization of the fuel to take place even when the engine is working at a low speed, because, although a small amount of air is drawn in, the space through which it enters is restricted. This causes the iiow of air past the valve 0 to be maintained at a set speed, and when required it will give the same mixture for any speed the engine may attain. By closing these valves the speed of the engine may be reduced.

The iioat l is so located that when suicient fuel has been introduced to cause it to rise nearly to the opening' in the top of the receptacle m the float will be suflciently elevated to close the valve 1. The valve will remain closed until the level of the liquid is reduced sufficiently to open it. an automatic regulation of the fuel.

It will be understood that I do not wish to be limited to the particular embodiment of my invention which I have illustrated in the drawings and described, as many modifications may be made therein without departing from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. Acarbureter for gas-engines,comprising a body having a passage therethrough, two pairs of valves in said passage, each comprising two sliding plates having an opening, the openings in the two plates of each pair being adapted to register with each other, and means for admitting fuel to the passage between said pair of plates through the openings in one of the pairs and at a point adjacent to that pair.

2. A carbureter for gas-engines,comprising a body having a passage therethrough provided with a Haring mouth at the inlet portion and an enlarged central portion, an air-valve located between said flaring mouth and said enlarged portion, a valve located at the other This will provide for.

end of said enlarged portion, means for simultaneously operating said valves, means for admitting fuel to said passage, and means in said enlarged portion for intimately mixing air and fuel.

3. A carbureter for gasengines,comprising a body having a passage therethrough, two pairs of valves in said passage each comprising two sliding plates having an opening therein, the openings in the two plates of each pair being adapted to register with each other, means for admitting fuel to the passage between said pairs of valves, a foraminous screen extending across the passage between the valves, and a baffle-plate attached to said screen.

4. A carbureter for gas-engines,comprising a body having a passage therethrough, two pairs of valves in said passage, each comprising two reciprocating plates having an opening therein, the openings in the two plates of each pair being adapted to register with each other, and a fuel-inlet adjacent to one of said valves.

5. A carbureter for gas-engines,comprising a body having a continuous passage therethrough, a plurality of valves in said passage, each of said valves comprising a pair of plates having openings adapted to be brought into registration with each other, casings attached to said body for containing said plates, means for introducing fuel between the Valves, and means for simultaneously operating said plates; comprising a link connected to each plate, a pair of bell-cranks each connected to two of said links, and a link pivotally connected to one of said bell-cranks and adjustably connected to the other.

6. A carbureter for gas-engines, comprising a body having a passage therethrough provided with an inlet at one end and an outlet at the other, a valve near said inlet, and a second valve near said outlet, each of said valves comprising two sliding plates each having an opening therein, the openings of the two plates of each valve being adapted to register with each other, means for simultaneously operating said valves, and means for introducing fuel at a point between them.

7. A carbureter for gas-engines, having a passage for air and gas, a plurality of valves in said passage, each of said valves comprising a pair of plates having openings adapted to be brought into registration with each other, a casing attached to said body for containing the plates, means for introducing fuel at a point between said valves, means for regulating the amount of fuel introduced, and means for simultaneously operating said plates, comprising a link connected to each plate, a pair of bell-cranks each connected to two of said links, and a link connected to both of said bell-cranks, the connection between the link and one of the bell-cranks being adjustable.

8. The combination of a carbureter for gas- IOO IlO

engines, comprising a body having a passage provided with a flaring mouth and an enlarged central portion, a valve between said mouth and enlarged portion, with means for introducing vaporizable fuel, comprising a casing having an outlet located in said passage above the Haring mouth and valve, and a feed device for the iuid, comprising a tank having an inlet, a valve for the inlet, and automatic means for controlling the valve.

9. The combination of a carbureter Jforgashaving oppositelyextending arms pivotally connected to the two links of each valve, each of said bell-cranks having an arm projecting at an angle from the first-mentioned arms, a link connecting said arms and adjustably Connected to one of them, a foraminous plate in said enlarged portion and provided with a convex baiie-plate for intimately mixing air with fuel, a tube extending into said Haring 'end and through the openings in the plates of the valve located at the end of said iaring end, a valve in said tube, a tank, an inletvalve for said tank, a float in the tank con'- nected with said inlet-valve, and a tube connecting said tank with said iirst-mentioned tube.

In testimony whereofl have signed my name to this specication in the presence of two subscribing witnesses.

.OGDEN MIN TON.

Witnesses:

FRANCIS L. MINTON, THos. C. CRAIL. 

